Nutrisport aspartame free summer fruits energy boost virtually lactose free gm free and suitable for vegetarians great taste . easily mixed predigested whey protein isolate contains rapidly assimilated amino acids high in branched chain amino acids which are removed from muscle tissue and converted to glucose during high intensity exercise clear in solution. It also increases the insulin response which drives the carbohydrate into the muscles. This blend can provide 24 percent to 29 percent greater increase in endurance than carbohydrate only drinks and 57 percent greater than water alone. The graph shows that the most important time to replenish your muscles is during the hour after exercise, so that you are fully fit for your next session. This replenishment is important, whether you are an endurance athlete, power athlete, rugby or football player. This is essential if you train or compete more than twice a week.